Water harvesting and soil moisture retention - chapter 5,6 potx

... Water harvesting and soil moisture retention 6 1 Introduction: why water harvesting and soil moisture retention Water is one of the main requirements ... encourage infiltration and storage of rainwater (soil moisture retention or conservation). The advantages of water harvest- ing and moisture retention techniques in (semi-)arid areas may be summa...

Ngày tải lên: 04/07/2014, 02:20

... the Water harvesting and soil moisture retention 14 3.2 The water- soil system The objective of a water harvesting system is to harvest runoff. Runoff is produced in the water- soil system ... (mm/growing pe- riod) Sensitivity to drought Bean 95 - 110 300 - 500 medium - high Maize 125 - 180 500 - 800 medium - high Melon 120 - 160...

Ngày tải lên: 04/07/2014, 02:20

... Water harvesting and soil moisture retention 38 Figure 11: Contour ridges and furrows. Conditions Rainfall: 350 - 700 mm Soil: Good results on silty loam to clay loam soils. On heav- ier, ... contours) may come closer to- Water harvesting and soil moisture retention 52 Figure 20: Closed micro-catchment on sloping land. Figure 21: Closed micro-catchme...

Ngày tải lên: 04/07/2014, 02:20

... Water harvesting and soil moisture retention 70 8 Measures to improve infiltration and water storage Infiltration of water into a soil is improved by making the soil struc- ture looser and ... crops also suppress weed growth. Water harvesting and soil moisture retention 62 Part II: Soil moisture retention In this second part soil moistu...

Ngày tải lên: 04/07/2014, 02:20

... 3). Soil moisture. Water held in the soil and available to plants through their root system, also called soil water. Soil moisture profile. The depth to which water infiltrates into the soil, ... more years and which normally flowers and fruits at least in its second and subsequent years. Water harvesting and soil moisture retention 92 Further read...

Ngày tải lên: 04/07/2014, 02:20

... your father and uncles. And is such a girl to be my nephew’s sister? Is her husband, is the son of his late father’s steward, to be his brother? Heaven and earth!—of what are you ... obeyed, and running into her own room for her parasol, attended her noble guest downstairs. As they passed through the hall, Lady Catherine opened the doors into the dining-parlour and drawing-room,...

Ngày tải lên: 21/01/2014, 18:20

... TYPES HOLARCHY GEO-CLIMATIC ZONE AGROECOZONE CATCHMENT -GEOLOGY -CLIMATE -VEGETATION - AGRIC. POTENTIAL -ARID AND SEMI-ARID -CENTRAL HIGHLANDS -COASTAL REGION -LAKE BASIN -FOREST ZONE -TEA-DAIRY ZONE -COFFEE-TEA ZONE -MARGINAL ZONE GEOGRAPHIC AND ... current tribe began before the arrival of Europeans. The three subclans (Mbari-ya-igi, Mbari-ya-Gichamu, and Mbari-ya-Ngoru) derive f...

Ngày tải lên: 18/06/2014, 19:20

... of the access road and (2) devel- opment of an income-generating project. Gikabu-na-buti village revised its action plans to electrication, water supply, income generation, and extension. Thiririka ... cars, a telephone, and electricity; more than 3 acres of farmland; educated children; and a well-fed fam- ily. Wealthy households in Thiririka were those that owned land and a bi...

Ngày tải lên: 18/06/2014, 19:20

... a dry run that includes a question -and- answer session and perhaps even mock-media interviews. To fully appreciate public sentiment, the lead agency’s decision-maker should attend all scoping ... insignicant. 9.7.3 SHORT-TERM VERSUS LONG-TERM IMPACT The Regulations require consideration of both short-term and long-term impacts (§ 1508.27). The distinction between these terms is subjec...

Ngày tải lên: 18/06/2014, 19:20

... equipment thoroughly with potable water and a nonphosphatic laboratory-grade detergent. The pressure washer should pro- duce a minimum water pressure of 80 psi and a minimum temperature of 180˚F. 3. ... includes but is not limited to: • Deep soil sampling equipment (e.g., split-spoon, thin-walled tube samplers) • Shallow soil sampling equipment (e.g., hand augers, core sampler) •...

Ngày tải lên: 18/06/2014, 19:20