二十五年前,防止侵蚀和土地规划技术对新西兰说来还很不成熟,更不知道土地利用能力的分类(所说土地利用能力是指土地可供持续使用而不致引起侵蚀的能力).水土保持方法仅见于合作示范农场的实验方案.侵蚀问题通常是单独处理的,并很少想到涉及整个农场或集水区的土地规划技术. Twenty-five years ago, erosion prevention and land-planning technologies were still immature for New Zealand, not to mention the classification of land-use abilities (so-called land-use abilities refers to the land’s ability to sustain its use without causing erosion). Soil conservation methods are found only in pilot schemes for cooperative demonstration farms, and erosion problems are usually handled separately and seldom involve land-planning techniques that involve the entire farm or catchment.